QuestaSim is a professional verification tool from Siemens EDA (formerly Mentor Graphics). It is not officially distributed as a "portable" standalone app (like an AppImage), but you can create a portable-like environment by installing it into a specific directory and moving that folder between machines with the same OS.
Some communities package QuestaSim as an or Singularity container for zero‑install use. Search for questasim-linux-appimage (use at your own risk – respect licensing terms). download questasim for linux portable
: QuestaSim is primarily available through a Siemens account . You generally must have a valid license tied to your account to access the download files. QuestaSim is a professional verification tool from Siemens
If using a floating license, ensure your portable machine can reach the license server via VPN. download questasim for linux portable